how to change the datatype of numpy.random.rand array in python?

Question

I'm learning Numpy module from scratch going through the official Numpy documentation.
Now my goal is to create a random (3, 3) array.

>>> np.random.rand(3,3)

However the output I recieved is a bunch of random float values.

array([[ 0.33519419,  0.53502883,  0.35485002],
   [ 0.73419236,  0.85315716,  0.64135169],
   [ 0.51732791,  0.27411508,  0.32482598]])

I wonder how can I do the same with int

Referring the Official documentation of Numpy for the numpy.random.rand here I don't find a clue on converting or specifying the data type from float values to integer.

How can I achieve random values in int?

llllllllll · Accepted Answer · 2018-02-04 08:07:38Z

2

If you want to generate random int, use np.random.randint().

If you want to convert float to int, use np.int32(something).

answered Feb 4, 2018 at 8:07

llllllllll

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4 Comments

Sundararajan Over a year ago

Oh Thanks. by the way whats the purpose of numpy.random.rand() function? Is it only to display the float value?

llllllllll Over a year ago

Generate a random float between 0, 1. See documentation docs.scipy.org/doc/numpy-1.13.0/reference/generated/…

Sundararajan Over a year ago

Thanks I got it now :-)

sanner little Over a year ago

The results most are "0" and "1", so how to convert like 0.01231341, 0.2341235. 0.234246524... to 1231341, 2341235, 234246524

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